Answer: Os herbívoros são animais que apresentam dieta que inclui vegetais ou algas, ou seja, alimentam-se de organismos produtores em uma cadeia alimentar. Vários animais apresentam essa forma de alimentação, sendo tal dieta observada tanto em vertebrados como em invertebrados.
Os animais herbívoros apresentam características que auxiliam na captação desse alimento bem como no seu processo de digestão. Nos vertebrados, por exemplo, observa-se a presença de dentes adaptados à trituração do vegetal e um sistema digestório rico em bactérias que atuam promovendo a digestão da celulose.
Lysosomes ( common in animal cell but rare in plant cells) contain hydrolytic enzymes necessary for intracellular digestion in white blood cells that eat bacteria) lysosomes contents are carefully released Into the cytoplasm can also cause cell death.
Peroxisomes: this organelle is responsible for protecting the cell form its own production of toxic hydrogen peroxide. As an example, white blood cells produce hydrogen peroxide to kill bacteria .The oxidative enzymes in peroxisomes break down the hydrogen peroxide into water and oxygen.
Secretory vesicles: cell secretions –e.g, hormones, neurotransmitters, are packaged in secretory vesicles at the Golgi apparatus. The secretory vesicles are then transported to the cell surface for releases.
All of the above points are valid for fossils' contributions in understanding the process of evolution. They allow us to study the ancestry, we can see the homologous organs or structures, if fossils are well-preserved; different fossils can lead us to follow the cycles of the changes that occurred during macroevolutions, and fossils can be used to study different populations which had different body structures for surviving in different environmental conditions.
Sperm cells inside the pollen grain travel down the pollen tube and into the ovary which contains the ovules. Fertilization occurs when one of the sperm cells fuses with the egg inside of an ovule
Answer:
The correct answer is: True.
Explanation:
- The writing of a person is controlled by an region located in the left part of frontal lobe of the brain which is known as the Broca's area.
- Writing is a motor impulse send by the brain to the hand and fingers.
- However, no two individual can have the same hand-writing.
- This is because hand-writing is not only dependent on the brain to hand motor co-ordination.
- It also depends upon the psychology, mentality, thought process, state of mind, nature of the person and also the influence of the surroundings on the person.
- It also depends on the preference of the person to keep his writing artistic or simple or illegible.
- All these factors can never match between two persons.
- This is the reason, no two persons can share the exactly same hand-writing.
