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3 years ago

What type of plant is the creosote bush?

Biology

2 answers:

My name is Ann [436]3 years ago

8 0

The creosote bush is a flowering shrub.

Ivenika [448]3 years ago

7 0

Answer: c. shrub

Explanation:

Creosote bush is a shrub. Its botanical name is <em>Larrea tridentate</em>. It is found everywhere in Chihuahuan Desert in North America. It is unique set of adaptations to live in desert. Since desert has very less rainfall, Creosote bush does maximum photosynthesis in the morning when moisture in the air (humidity) is highest. It closes its stomata when sunlight is high and air is dry.

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Cystic fibrosis is an autosomal recessive disorder. In one population, the frequency of affected individuals (A 2 A 2) is 0.0004

Simora [160]

Hardy Weinberg Equilibrium

Explanation:

Hardy Weinberg Equilibrium formula for allelic frequency is: $p+q=1$

Hardy Weinberg Equilibrium formula for genotypic frequency is: $p^2+q^2+2pq=1$

Here, $p$ =frequency of dominant allele

$q$ =frequency of recessive allele

$p^2$ =frequency of dominant genotype

$q^2$ =frequency of recessive genotype

$2pq$ =frequency of heterozygous genotype

frequency of affected individuals=0.0004(given)

here,affected individuals means the one's having Cystic Fibrosis and since it is recessive disease so we can write frequency of recessive genotype as: $q^2$ =0.0004

If $q^2$ =0.0004 $q$ will be 0.02;frequency of recessive allele will be 0.02

Using the formula $p+q=1$

$p+0.02=1\\p=1-0.02=0.98$

hence,frequency of dominant allele will be 0.98

Frequency of dominant genotype will be $p^2=(0.98)^2=0.9604$
Frequency of heterozygous genotype will be $2pq=2*0.98*0.02=0.0392$

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3 years ago

DEFORESTATION<br> multiple choice

vredina [299]

Answer:

the answer is D

Explanation:

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3 years ago

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Write the common food chain of a pond ecosystem.

kozerog [31]

Explanation:

In a freshwater aquatic ecosystem like a pond, the organisms in the food chain include algae, small animals, insects and their larvae, small fish, big fish and a fish-eating bird or animal

pls mark brainliest

6 0

3 years ago

Read 2 more answers

Both of them I am very stuck on

Levart [38]

Answer:

25. red

24. A. Temperature and Luminoscity

Explanation:

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3 years ago

A young adult is exposed to a virus that infects and replicates in mucosal epithelial cells of the upper respiratory tract. One

marishachu [46]

Answer:

The CTL has specific receptors that can recognize infected or damaged cells.

Explanation:

The cytotoxic T cells (CTL) is a type of white blood cells that specifically helps in destroying virus-infected cells (also damaged cells and cancer cells).

This type of cells has a special receptor called T-cells receptors (TCR) which ones recognize specific antigens (molecule that stimulate the immune systems because are “strange” to them). Virus inside a cell could bind to a special molecule called class I MHC, this molecule moves the virus to the surface of the cell where it can be recognized by a CD8+ specific antigen-receptor of the CTL.

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3 years ago