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Ipatiy [6.2K]
2 years ago
13

2. Which labeled structures represent a homologous

Biology
1 answer:
WITCHER [35]2 years ago
7 0

Answer:

Diagram is needed please

Explanation:

diagram

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Select the description of sensory receptors.
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3....................
7 0
2 years ago
When a drug enters the body via oral ingestion, smoking, snorting, or injection, the chemicals move through the bloodstream and
Anna007 [38]

Answer:

Blood Brain Barrier(BBB)

Explanation:

This is a biological interface of special endothelial cells of astrocytes, pericytes , capillaries,  neurons and other  structures, acting as a physical barrier or  gate separating the Central Nervous system from the peripheral  blood circulations. Thus it  formed a tight junction serving as a  physical barrier to  selectively regulate the entrance of substances from the   cerebral blood flow   into the brain,  therefore maintaining homeostasis of the brain.

From above any  substances  absorbed into the blood stream  irrespective of the mode of entry  are transported through  the BBB, and  are selectively  regulated to enter the brain cells by the BBB's   interactions with the blood vessels, hormones etc.

Basically it allows the passage of nutrients,  a few  drug, hormones and resists certain toxins and pathogens for the brain homeostasis.

5 0
3 years ago
The inheritance of eye color in Drosophila is controlled by genes on each of the fly's four chromosome pairs. One eye-color gene
algol [13]

Answer:

F1 Females  - all wild type

F1 Males  - all wild type

F2 Females  -  - all wild type

F2 Males - 1/2 wild type, 1/2 vermilion

Explanation:

The wild-type allele (Xᵛ⁺) is dominant over vermilion (Xᵛ), which is a sex-linked trait.

Female flies have two X chromosomes, male flies have one X and one Y chromosome.

A homozygous wild-type female fly (Xᵛ⁺Xᵛ⁺) is mated with a vermilion male fly (XᵛY).

The female parent can only produce Xᵛ⁺ gametes.

The male parent can produce either Xᵛ or Y gametes.

When gametes from both parents fuse, the F1 offspring will have the genotypes Xᵛ⁺Xᵛ (females with wild type eyes) and Xᵛ⁺Y (males with wild type eyes).

The F1 females can produce Xᵛ⁺ and Xᵛ gametes. The F1 males can produce Xᵛ⁺ and Y gametes.

When the F1 individuals interbreed, the gametes combine to give rise to the F2 offspring. The possible combination of gametes that will give the different genotypes and phenotypes in the F2 are:

  • Xᵛ⁺Xᵛ⁺ females with wild type eyes
  • Xᵛ⁺ Y males with wild type eyes
  • Xᵛ Xᵛ⁺ females with wild type eyes
  • Xᵛ Y males with vermilion eyes

7 0
3 years ago
The structure of a substrate P strongly resembles substrate Q. In an experiment, By mistake P was used instead of Q as a substra
Dvinal [7]
<h3><u>Answer;</u></h3>

C) P and Q have similar binding properties

<h3><u>Explanation;</u></h3>
  • <u><em>Enzymes are biological catalysts that speeds up chemical reactions. Substrates are substances that are acted on by an enzyme to form a product.</em></u>
  • <u><em>An enzyme catalyzed reaction occurs when the substrate binds to the active site of an enzyme to form and enzyme-substrate complex. </em></u>
  • <em><u>Substrate P and Q are structurally similar which means they are in a position of binding and fitting in the active site of an enzyme. The strong structural similarity means that the binding properties of these two different substrates may be similar. </u></em>
  • <em><u>Formation of similar products or results when acted upon by an enzyme mean they are similar in terms of their binding properties, and thus the production of similar product.</u></em>
8 0
3 years ago
Trash is unsanitary and can attract pests it is important that trash is taken out to the dumpster
djverab [1.8K]
<h2>Answer:</h2>

Trash is unsanitary and can attract pests it is important that trash is taken out to the dumpster otherwise it can cause serious infection in the individuals of a society.

Garbage pollution is the main reason for various bacterial diseases. Gastrointestinal, stomach pain, vomiting and diarrhea, cholera, typhoid, malaria skin diseases and respiratory allergies are the diseases which are caused by the garbage.

The smoke from the burning garbage not only poisons the air, it also increases the spread of diseases. Recent research has provided information about emission of toxic gases like carbon dioxide and carbon monoxide due to the burning of waste.

6 0
3 years ago
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