b)homeostasis
c) thermoregulation
d) hypothalamus
2) which organism maintain a constant body temperature despite temperature changes in the environment?
a)a frog
b)maple tree
c)goldfish
d)human
3)when leaf has plenty of water
a) the guard cells swell and the stomates open
b)the guard cells swell and the stomates close
c)the guard cell lose pressure and the stomates open
d)the guard cells lose pressure and the stomates close
please helpppppp
Answer:
1. b. homeostasis: The internal balance of heat within an organism is maintained by the process of homeostasis. It is the ability of the organism to maintain the internal body temperature with respect to the changes that occur in the external environment.
2.d) human: The human beings are capable for maintaining the internal temperature due to homeostasis because they exhibit fat which allows them to maintain the internal heat.
3.c) the guard cell lose pressure and the stomata open: The stomata are small pores present on the underside of the leaf surface these are important for exchange of gases and water to the external environment. The water is lost by the stomata of the leaf during transpiration. When the plant requires to remove excess of water from the plant body it is evaporated from the stomata through transpiration.
B) The two systems must not be touching each another.
C) One system must have higher kinetic energy than the other system.
D) The thermal energy of one system must be the same as the thermal energy of the other system.
visceral mass
water vascular system
Answer:
visceral mass
Explanation:
B. carry water and nutrients between roots and leaves.
C. store carbohydrates.
D. store water.
One of the three main functions of stems is to carry water and nutrients between roots and leaves. So, the correct option is B.
The stem is defined as the axis of the plant that bears buds and shoots with leaves and, at its basal end, roots that conduct water, minerals, and food to other parts of the plant, which store food and the green stem itself produces food.
Stem is explained as the aerial part of the plant which contains leaves, fruits, branches and flowers. The stem is positively phototropic and negatively geotropic where as the leaves contain chlorophyll so that the plant can make food. The main functions of stems is to carry water and nutrients between roots and leaves.
Therefore, the correct option is B.
Learn more about Stem, here:
#SPJ6
one of the three main functions of stems is to carry water and nutrients between roots and leaves
reptile
bird
mammal
Ifan animal's heart has three chambers and it lays amniotic eggs, it should be a reptile(e.g. pythons and monitor lizards). However, through amniotic egg, a protectiveadaptive sac inside the egg, it os useful for reptiles, amphibians, birds andmammals.
Answer: Embryonic stem cells are pluripotent, they can become all cell types of the body. Adult stem cells are multipotent, which means they can only be differentiated in cells of the tissue of origin.
Explanation:
Adult and embryonic stem cells are able to they replicate to create many more stem cells, and they can grow into different types of cells throughout the body. One major difference between them cells is their different abilities in the type of differentiated cell types they can become.
Adult stem cells are part of the natural healing process of an organism. They are undifferentiated cells, found in the body after development and they can multiply by cell division to regenerate damaged tissues. While, embryonic stem cells are derived during early development at the blastocyst stage and they can differentiate into any type of cell of every part of the body.
Research with embryonic stem cells may lead to new treatments for human ailments.