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Paraphin [41]
3 years ago
12

What type or types of blood flow through the heart?

Biology
2 answers:
enyata [817]3 years ago
8 0

The correct answer is A.

Wittaler [7]3 years ago
7 0
Oxygenated blood. Oxygen is necessary to keep your organs working, and what would be the point of having useless unoxygenacted blood going through your most important organ? ☺
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If a sample of blood reacts with anti-A antibody and clumps, but not with anti-B antibody, this blood must be of type ______.
user100 [1]

this blood type is A as it contains antigen A which reacts with anti A

5 0
3 years ago
You are a graduate student in the lab of a famous fly geneticist. You need to analyze a batch of mutant flies that were recently
bazaltina [42]

Answer:

knirps (a gap gene)

wingless (a segment-polarity gene)

kruppel (a gap gene)

even-skipped ( a pair-rule gene)

hunchback (a gap gene)

hedgehog (a segment-polarity gene)

Explanation:

The gap, segment-polarity and pair-rule genes play central roles in controlling embryonic development of arthropods. In the first place, the gap genes are associated with the formation of contiguous body segments, thereby mutations in these genes result in gaps in the normal body plan of the embryo. For example, in <em>Drosophila melanogaster</em>, mutations in the <em>knirps, Krüppel </em>and<em> hunchback</em> genes result in deletion of body segments. These genes are also known to regulate segment polarity genes, which determine the polarity of the embryonic parasegments by modulating Wnt and Hedgehog signaling pathways. Finally, the pair-rule genes work together with gap genes to control embryonic development of alternating body segments.

3 0
3 years ago
Which characteristics describe deep ocean currents? Check all that apply.
Doss [256]

Answer:cJBI d0hf uzihxck

Explanation:

6 0
4 years ago
Which enzyme plays an important role in the conversion of arachidonic acid to leukotrienes?
bezimeni [28]

The enzyme is lipoxygenase.


Lipoxygenase is a variety of enzymes that can cause oxidation of fatty acids. There are several varieties of lipoxygenases, some of which are present in plants. They are involved in the formation of white blood cells that are involved in some severe allergic reactions (anaphylaxis). <em>It is based on this knowledge that antiallergic drugs have been developed to inhibit the activity of lipoxygenase, including reducing inflammatory reactions.</em>


Leukotrien are named thus because they were discovered in leucocytes and that they are unsaturated lipids with 3 conjugated double bonds (trienes) and 20 carbon atoms

4 0
4 years ago
The equation below represents a biological process. Where is this process completed?
Alla [95]

Answer:

The equation represents a biological process that is Photosynthesis. This process is done by plant cell in their chloroplast.

Expanation:

Plants contain  Chlorophyll Pigment that helps in the process of photosynthesis( a biological process through which plants can produce their own food with the help of sun light, Carbon dioxide and water and form glucose and oxygen).

This process takes place in chloroplast which contain double membrane with many folds. The double membrane encloses a structure called thylakoid that contain pigment chlorophyll. The function of chloroplast is to capture light that is required in the process of photosynthesis.

6 0
3 years ago
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