Answer:
The first question is a desert.
Four adaptations of desert plants are:
- Spiky or glossy leaves to reduce water loss.
- Thick, waxy skin to reduce loss of water and to reflect heat.
- Large stems to store water.
- Spikes to protect cacti from animals that want the stored water.
- Desert Tortoise
- Kangaroo Rat
- Jack Rabbit
- Spadefoot Frog
Explanation:
While females have a second X-chromosome that masks the X-linked recessive allele, males do not, but instead have a Y-chromosome which does not represent the same alleles as the X-chromosomes, resulting in not being able to mask the X-linked recessive allele.
Answer:
Biotic Factors are living things
and Abiotic Factors are non- living
Explanation:
Answer and Explanation:
The hypothalamus contains the central thermoreceptors which detect blood temperature as well as the thermoregulatory centre. The skin of organism contains peripheral thermoreceptors which detect the environmental temperature.
Increase in body temperature above the normal initiates the appropriate corrective mechanisms that include sweating, lowering of hair for mammals, vasodilation of superficial blood vessels and decrease in metabolic rates. This has an overall effect of causing the body temperature to fall and the normal body temperature is restored.
Sweat is secreted by sweat glands that evaporates from the surface of the body cooling the body as it absorbs latent heat of vaporization. Superficial blood vessels vasodilate so that more blood flows near the surface to encourage heat loss. Hair is lowered so that it lies against the body surface. This encourages heat loss from the body to the external environment.
Answer:
Endoskeleton
Explanation:
An internal skeleton is called an endoskeleton, which is what vertebrates have. A sponge endoskeleton consists of short, sharp rods called spicules
Spicules are made of silica, calcium carbonate, etc.
