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ludmilkaskok [199]
3 years ago
13

How is blood made in your body?

Biology
2 answers:
Irina-Kira [14]3 years ago
8 0
Whenever you inhale your lungs fill with oxygen. That oxygen goes to your heart and acts as a fuel to make blood. You're heart then pumps it to everywhere in your body through your veins and takes back the used blood. When returned to the heart, the oxygen refreshes the red blood cells to make them usable again! When you exhale, you get rid of the Carbon Dioxide, which is basically used up oxegen, so it's useless. After you exhale, you inhale again and the process starts over again!
} I hope this helped! {
> Sorry the question was long
timama [110]3 years ago
8 0
The body must produce the liquid part of blood, called plasma, and the cells that float in it. Plasma is made mostly of water and salts that we absorb through our digestive tracts every day. Its job is to deliver nutrients and water throughout the body. Ninety-nine percent of the blood cells floating in plasma are red blood cells, which carry oxygen from the lungs to the rest of the body and give blood its red color. The average life of a red blood cell is four months.
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What global climatic change gave gymnosperms an advantage over ferns?
luda_lava [24]

Answer:

it is D

What global climatic change gave gymnosperms an advantage over ferns?

A) Increased fluctuations in global climate

B) the climate becoming hotter and wetter

C) the climate becoming cooler and drier

D) the climate becoming hotter and drier

4 0
3 years ago
One method used by newborn mammals to generate heat is referred to as nonshivering thermogenesis. This method utilizes a protein
stich3 [128]

Answer:

One method used by newborn mammals to generate heat is referred to as nonshivering thermogenesis. This method utilizes a protein channel called <u>thermogenin</u> which is present in high levels inside the mitochondria of <u>brown adipose tissue.</u>

Explanation:

Thermogenin forms a proton channel in the inner mitochondrial membrane in the brown adipose tissues. Most of the newborn mammals have these brown adipose tissues. In these tissues, the oxidation of nutrients do not produce ATP but generate heat. The heat is used by the newborn to maintain the warmer body temperature. The process is called nonshivering thermogenesis.

6 0
3 years ago
In Drosophila, vestigial (partially formed) wings (vg) are recessive to normal long wings (vg+) and the gene for this trait is a
Marina CMI [18]

Answer/ Explanation:

a. The genotype of a homozygous white eyed long winged female would be Vg+Vg+XrXr. We denote the white allele as recessive (r) because the XY male only has one copy and yet has red eyes, so the red eye trait (R) must be dominant. A homozygous red eyed vestigial winged male would have be VgVgXRY. The possible gametes for the female are Vg+Xr only. For the male, the possible gametes are VgXR or VgY

The attached punnett square shows the results of the cross. The females will all be Vg+VgXRXr. The males will all be Vg+VgXRY (must inherit Y from father). That means they will all  have normal length wings, the males will have white eyes and the females will have red eyes.

b. The F2 flies arise from intercrossing the F1, so the cross will be Vg+VgXRXr x Vg+VgXRY. The possible gametes for the mother are: Vg+XR, Vg+Xr, VgXR or VgXr. The possible gametes for the father are Vg+Xr

, Vg+Y

, VgXr

, VgY

. The attached punnet square shows this cross. The ratio of the phenotypes will be 6:6:2:2, or 3:3:1:1 (long-winged red eye: long-winged white eye: vestigial wing red eye: vestigial wing white eye), genotypes shown in the attachment.

c. F1 cross back to the mother would be Vg+VgXRY x Vg+Vg+XrXr. The genotypes are shown in the attached punnet square. The offspring will all be long-winged with white eyes. The F1 to the father would be Vg+VgXRXr x VgVgXRY. The ratio would be 3:3:1:1 long-winged red eye: long-winged white eye: vestigial wing red eye: vestigial wing white eye

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7 0
3 years ago
Genes code for the production of ________ which can control traits.
lara [203]

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.

7 0
1 year ago
Read 2 more answers
The key function of classical conditioning is to allow an organism to
nikdorinn [45]
The key function of classical conditioning is to allow an organism to <span>learn new species-typical behaviors.
Classical conditioning refers to when two or more different stimuli are joined in order for an organism to learn something it didn't know before. The more you repeat the conditioning, the faster the organism will learn. For example, Pavlov experimented with dogs - each time they were presented with food, they would also hear a bell. So each time dogs heard the bell, they knew that they would be getting food soon.
</span>
4 0
3 years ago
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