What part of the blood carries the oxygen?

a. the heme group of hemoglobin

b. the platelets

c. the nucleus of the red blood cell

d. the white blood cells

Answers

Answer 1

Explanation:

. the nucleus of the red blood cell is the write answer


Related Questions

Write a paragraph explaining how genetic variation, reproductive strategies and environmental pressures have impacted the survival of populations. Identify a specific example for each in your discussion.

Answers

Answer: Genetics and Pressures

Explanation:

For natural selection to occur, a population must have a wide variety of individuals with different traits. For example, natural selection would not influence fish body color if all individuals in a population were exactly the same color. Variation of scale color can help a fish species have a higher chance of survival by confusing predators as to what species they are.

Reproductive strategies represent a set of behavioral, morphological, and physiological adaptations that facilitate access to potential mates, improve the chances of mating and fertilization, and enhance infant survival. Male peacocks have bright, big tail feathers, for example, to attract females. If an organism has a high appeal, this will make them more likely to be able to meet and continue the survival of the species.

Environmental pressures, such as plant death, could influence the survival of herbivorous organisms. Say a small land creature consisted off grass, and an epidemic killed all the grass in their region. They would either die off, or they would evolve to find different types of food. The former could reduce population, while the latter could increase it.

What role do humans play in the loss of species and ecosystem services?


Answers

Answer:

Just as humans can have a stabilizing effect on their ecosystems, they can also play a destructive role.Explanation:

genes code for the production of ________ which can control traits.

Answers

Answer:

protein

Most genes contain the information needed to make functional molecules called proteins. (A few genes produce regulatory molecules that help the cell assemble proteins.) The journey from gene to protein is complex and tightly controlled within each cell.

genes code for the production of protein which can control traits

Almost 40% of the world population and many ecosystems are suffering from water scarcity. Many actions taken in the past have led to the water shortage being experienced today. Evaluate each of the factors listed below. All of these have led to water scarcity EXCEPT: A) sea-level rise B) population growth agricultural demand D) climate change, including drought​

Answers

Answer:

Water scarcity already affects every continent. Around 1.2 billion people, or almost one-fifth of the world's population, live in areas of physical scarcity, and 500 million people are approaching this situation. Another 1.6 billion people, or almost one quarter of the world's population, face economic water shortage (where countries lack the necessary infrastructure to take water from rivers and aquifers).

Water scarcity is among the main problems to be faced by many societies and the World in the XXIst century. Water use has been growing at more than twice the rate of population increase in the last century, and, although there is no global water scarcity as such, an increasing number of regions are chronically short of water.

Water scarcity is both a natural and a human-made phenomenon. There is enough freshwater on the planet for seven billion people but it is distributed unevenly and too much of it is wasted, polluted and unsustainably managed.

Explanation:

Where does alcohol get absorbed into your bloodstream? ​

Answers

Some of it is absorbed directly through the lining of the mouth and esophagus, some through the walls of the stomach and the rest is absorbed by the intestines, mainly the small intestine.

Which of the following is NOT a result of global warming?

(societal conflicts)

(sea-level rise)

(loss of biodiversity)

(ozone depletion)

Answers

Ozone depletion is NOT a direct result of global warming. While both global warming and ozone depletion are environmental concerns, they are caused by different factors and have distinct impacts.

Global warming is primarily caused by the increased concentration of greenhouse gases in the atmosphere, trapping heat and leading to a rise in global temperatures. It results in a wide range of consequences, including the melting of polar ice caps, rising sea levels, extreme weather events, shifts in ecosystems, and the potential loss of biodiversity as species struggle to adapt to changing conditions.

On the other hand, ozone depletion is mainly caused by the release of certain chemicals known as ozone-depleting substances (ODS) such as chlorofluorocarbons (CFCs) and halons. These substances break down ozone molecules in the stratosphere, leading to the thinning of the ozone layer. Ozone depletion primarily affects the stratospheric ozone layer, which shields the Earth from harmful ultraviolet (UV) radiation. The thinning of the ozone layer can have detrimental effects on human health, ecosystems, and agricultural productivity.

Therefore, while global warming and ozone depletion are both significant environmental issues, ozone depletion is not a direct result of global warming.

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why osmosis is special case of diffusion?​

Answers

Answer:

Diffusion can be called as osmosis in some cases because if the substance is liquid and passes through a semi-permiable membrane then its osmosis.
WELCOME!

Answer:

Osmosis is a special kind of diffusion because in both cases there is a movement of particles from a higher concentration region to a lower concentration region. The only difference is that osmosis is applicable to the movement of the solvent only through the semi-permeable membrane where the solvent is water.

Explanation:

n this experiment, you need to examine the idea of thermal energy transfer. Using a controlled experiment, what might a good question about the variables that affect thermal energy transfer be? Thermal energy transfer depends on many properties, but limit your question to only two.

Answers

The thermal conductivity and temperature difference between the surrounding plays a crucial role in the transfer of thermal energy between the materials.

What are the three modes of thermal energy transfer?

The three modes of thermal energy transfer include conduction (direct contact of atoms), convection (migration of warm particles), and radiation (migration of electromagnetic waves).

The first property is thermal conductivity. Examples include a cube of ice when positioned in the hand of a man. It causes the ice to melt via the thermal conduction from men's hands.

The second property is the temperature difference. Examples include when a hot cup of tea mingled with a cold glass of water. It changes the temperature to a new value which is different from the exact temperature of both initial fluids.

Therefore, it is well described above.

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what do Greenland and the united states have in common (A they are both located in North America) (B they are both located in the pacific ocean) ( C they are both islands) D they are both conidents)

Answers

Answer:

A.  They are both located in North America

Explanation:

A.  Although it is a European country, Greenland is physically a part of North America.

B is not correct because, while it borders the Pacific Ocean on the West Coast, The US is not in the Pacific Ocean.  Greenland lies between the North Atlantic and Arctic Oceans.

C is not correct because the United States is not an island.

D is not correct because neither one is its own contintent.

Why do large-scale convection currents occur in the atmosphere?

Answers

Explanation:

Convection drives the circulation of air in the earth's atmosphere. The sun heats the air near the earth's equator, which becomes less dense and rises upward. As it rises, it cools and becomes less dense than the air around it, spreading out and descending toward the equator again.

Explain the difference between active and latent viruses.

Answers

Answer:Both are viruses that are going to invade and reproduce in a host cell. The difference is that an active virus immediately takes over the cell and a hidden virus stays “hidden” and waits a while to take over.

Explanation:

Alleles practice: Am i right? though it says this is possible

Answers

Answer:

Yes I'm pretty sure it's right

Explanation:

It looks right I looked over it and it looks good

Describe the relationship between a thermal inversion and pollution.

Answers

Answer:

With a stronger inversion (greater thermal difference between inversion and mixing layers), less pollution can disperse into higher atmospheric levels. Likewise, the longer an inversion lasts, the more pollution will build up, and the worse the air quality in the mixing layer will be

Explanation:

Part of an mRNa strand has 9 nucleotide bases. How many amino acids does this strand code?

A. 2
B. 6
C. 9
D. 3

Answers

Answer:

It would code for 3 amino acids.

Explanation:

Three nucleotide bases code for one amino acid.

e.g: AUG codes for methionine

or GUG codes for valine.

Which planet has a temperature range of 400C to -200C?

Answers

Answer:

Mercury and Venus

Explanation:

similarities between earth and Jupiter​

Answers

Answer:

they are both circle. They are the part of solar system.

Before complex development of a fetus can begin, implantation into the uterine wall must occur. What gets implanted in the uterine wall?

Answers

Answer:

Embryo

Explanation:

A egg cell is fertilised to form a zygote which is diploid(contains two sets of chromosomes) and then it divides again and again into a ball of cells by mitosis and then it is implanted

Something from my biology a few years ago, HOPE IT HELPS Implantation is defined as the process by which the embryo attaches to the endometrial surface of the uterus and invades the epithelium and then the maternal circulation to form the placenta. Before the initiation of implantation, however, both embryo and endometrium should embark on an elaborated process in a time- and location-specific manner. The crosstalk between a receptive uterus and a competent blastocyst can only occur during a limited time span, known as the “window of implantation” (Psychoyos, 1986; Ma et al., 2003). The window of endometrial receptivity is restricted to days 16-22 of a 28-day normal menstrual cycle, 5-10 days after the luteinizing hormone (LH) surge (Navot et al., 1991). The uterus then continues into the non- receptive period for the remaining cycle as the late luteal

phase until menstruation ensues. It is not surprising that early pregnancy loss, which occurs during the peri-implantation period before pregnancy is confirmed clinically, is common in humans (Norwitz et al., 2001). The risk of spontaneous abortion significantly increases with implantation beyond this window (Wilcox et al., 1999). The synchronized molecular dialogue mediated by cytokines, a variety of growth factors, prostaglandins, matrix degrading enzymes and their inhibitors, and adhesion molecules is required for successful implantation. Infertility, the inability to conceive within a year of unprotected intercourse, affects one in seven reproductive-aged couples in Korea (Kim et al., 2014). It is necessary to investigate the hierarchical pathways that orchestrate the implantation process to develop solutions for implantation failure and to raise fertility rates in women.

I need help with number 1 and 2

Answers

Answer:

Read the Explanation below.

Explanation:

1. I agree with the claim because you can see overall there is no difference in plant growth or variation if a plant has 30 ml of water or none at all.

2. I would measure the change in growth over a greater period of time to get a more accurate data set.

how can muscle and nervous tissue be used in postmortem analysis?

Answers

Answer:

by checking if the muscles are injured

True or false? swallowing has both voluntary and involuntary components.

Answers

Answer:

true po

Explanation:

pabrainlist thx tama po yan

Planet A has a tilt a of five degrees. What seasonal changes would be expected on this planet?
Extreme temperature changes between seasons
Little to no change in temperatures between seasons
Seasonal changes along the equator only
Seasonal changes at the poles only

Answers

Answer:

B. Little to no change in temperatures between seasons.

Assuming planet A is the earth, the earth is very slightly rotated on its axis toward the sun and Jupiter, so there would not be a dramatic change if we tilted the earth 5 degrees.

Which of the following choices is an example of agricultural biotechnology?
A) Farmers use radar to predict storms.
B) Farmers cross-breed two species of cows to create a new breed that produces more milk, but requires less food.
C) Farmers rotate crops to keep soil nutrient-rich.
D) Farmers replant an orchard every 20 years to keep trees strong and productive.

Answers

B - cross breeding cows

Biotechnology utilizes biological systems, living organisms or parts of this to develop or create different products

Answer:

B)

Explanation:

genetically modifying livestock in a sustainable manner as higher yields are produced and less feed is used.

how do births and deaths in a population affect its size?

Answers

Answer:

it doesn't affect size directly but affect no. as when death increase the offsprings increases to compensate its loss ,as cell doesn't live much it doesn't take enough nutrition so for your question it does affect but not a distinctive theory

List the region or countries the majority of African elephants inhabit

Answers

Answer:

Explanation:

African elephants primarily inhabit the Democrtic Republic of the Congo and close surrounding areas.

Why is knowing agricultural statistics, background information, and soil characteristics about the territory in which your farm is located important?

Answers

Knowing the agricultural statistics of where your farm is located is important because it can help a farmer to identify the efficiencies that will lead to more productivity and profitability, less input costs, and optimized fertilizer use. The background information is important to farmers because it helps a farmer know whether or not the ground is good for growing crops, if something had happened to the land before their use. Soil characteristics are important to farmers because fertile soil is important for crop growth. The soil needs to be able to allow water and air to infiltrate, roots to be able to move more, and for biota to be able to thrive.

Where does most of the power in homes come from?

Answers

Answer: Natural Gas

Explanation:

Electricity and natural gas are the most-used energy sources in homes. Electricity is used in almost all homes, and retail electricity purchases accounted for 43% of total residential sector end-use energy consumption.

Do humans share a common ancestor with yeast? How do you know?
HELP PLSSSSSSSSSS

Answers

Yeast possesses 23% homologous genes to humans; therefore, it is considered as a useful model for gene function studies. Although yeast and human diverged from a common ancestor approximately 1 billion years ago, lines of evidence demonstrate the strong conservation of gene function between yeast and humans

12 Which does not produce carbon dioxide?
A a muscle fibre
B a sensory neuron
C blood
D saliva​

Answers

A sensory neuron does not produce carbon dioxide

Explain how dna polymerase chooses which nucleotides to put into the new strand. Be specific and detailed in your explanation of how this selection is accomplished to make the correct dna molecule

Answers

DNA polymerase adds nucleotides at the 3' primer end of the DNA. This DNA polymerase checks the newly added base has correctly paired with the base in the template strand or not. Based on this it adds the new nucleotide.

What is nucleotide?

Nucleotide is the nucleoside with a phosphate group. It generally stack or link with each other to make a polynucleotide chain.

DNA polymerase adds these nucleotides one by one to the 3' primer end on the DNA strand.

It usually checks the correct pairing of the base with the template strand and then adds the new nucleotide to it.

Thus, by this step DNA polymerase choose nucleotides to put into the new strand.

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Construct and revise an explanation of how macromolecules are used in the body. Use as much details as possible.

Answers

macromolecules provide structural support, a source of stored fuel, the ability to store and retrieve genetic information, and the ability to speed biochemical reactions , hope this helps :)
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